1.4 Approvals and Certifications The following list is a selection of possible type approvals and certifications for Danfoss drives: The specific approvals and certification for the enclosed drive are on the nameplate of the drive. For more information, contact the local Danfoss office or partner.
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There is a risk for overvoltage. Isolation between components and critical parts could be insufficient, and may not comply with PELV requirements. Use external protective devices or galvanic isolation. For installations above 2000 m (6500 ft) altitude, contact Danfoss regarding protective extra low voltage (PELV) compliance.
• Danfoss recommends the fuse type gG (IEC 60269-1) for the mains fuses. Use only fuses with a sufficient voltage rating according to the mains voltage. Do not use larger fuses than what is recommended. These fuses are selected for short-circuit protection only.
RS485 is a 2-wire bus interface compatible with multi-drop network topology. This interface contains the following features: • Either Danfoss FC or Modbus RTU communication protocol can be used. • Functions can be programmed remotely using the protocol software and RS485 connection or in parameter group 8-** Communications and Options.
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9.3.16 ALARM 15, Hardware Mismatch Cause A fitted option is not operational with the present control card hardware or software. Troubleshooting Record the value of the following parameters and contact Danfoss. • Parameter 15-40 FC Type. • Parameter 15-41 Power Section.
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Check that the option is properly installed. • Check for loose or missing wiring. It may be necessary to contact the Danfoss supplier or service department. Note the code number for further troubleshooting directions. Table 73: Internal Fault Codes Number Text The serial port cannot be initialized.
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Operating Guide | VLT® HVAC Drive FC 102 Troubleshooting Number Text 1024-1284 Internal fault. Contact the Danfoss supplier or Danfoss service department. 1299 The option software in slot A is too old. 1300 The option software in slot B is too old.
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9.3.48 ALARM 50, AMA Calibration Failed Troubleshooting • Contact the Danfoss supplier or service department. 9.3.49 ALARM 51, AMA Check Unom and Inom Cause The settings for motor voltage, motor current, and motor power are wrong.
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Try to restart the AMA. Repeated restarts can overheat the motor. 9.3.56 ALARM 58, AMA Internal Fault Troubleshooting Contact the Danfoss supplier. 9.3.57 WARNING 59, Current Limit Cause The current is higher than the value in parameter 4-18 Current Limit.
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Operating Guide | VLT® HVAC Drive FC 102 Troubleshooting Troubleshooting • To check compatibility, contact the Danfoss supplier with the type code from the unit nameplate and the part numbers on the cards. 9.3.69 ALARM 71, PTC 1 Safe Stop Cause ®...
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(IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies to dimensioning of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to drives.danfoss.com/ knowledge-center/energy-efficiency-directive/#/.
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(IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies to dimensioning of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to drives.danfoss.com/ knowledge-center/energy-efficiency-directive/#/.
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(IE/IE3 border line). Lower efficiency motors add to the power loss in the drive. Applies to dimensioning of drive cooling. If the switching frequency is higher than the default setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to drives.danfoss.com/ knowledge-center/energy-efficiency-directive/#/.
Specifications setting, the power losses can increase. LCP and typical control card power consumptions are included. For power loss data according to EN 50598-2, refer to drives.danfoss.com/ knowledge-center/energy-efficiency-directive/#/. Options and customer load can add up to 30 W to the losses, though usually a fully loaded control card and options for slots A and B each add only 4 W.
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Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.
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